如图,在
中,
,
为
上一点,作
,与
交于点
,经过点
,
,
的
与
相切于点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/11/466ad774-2447-49de-a5f1-6e37df23b8d3.png?resizew=172)
(1)求证:
平分
;
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee73452ee4d5437f1399f1235b95e55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/11/466ad774-2447-49de-a5f1-6e37df23b8d3.png?resizew=172)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc5df62e8ac9c74a46462519b95479a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
更新时间:2023-03-09 12:44:11
|
相似题推荐
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,△ABC为⊙O的内接三角形,AB为⊙O的直径,将△ABC沿直线AB折叠得到△ABD,交⊙O于点D.连接CD交AB于点E,延长BD和CA相交于点P,过点A作AG∥CD交BP于点G.
(1)求证:直线GA是⊙O的切线;
(2)求证:AC2=GD•BD;
(3)若tan∠AGB=
,PG=6,求cos∠P的值.
(1)求证:直线GA是⊙O的切线;
(2)求证:AC2=GD•BD;
(3)若tan∠AGB=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2020/7/1/2496306687721472/2496704205234176/STEM/5334bded1c11466c92e1ae5d34395201.png?resizew=263)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】已知AC是
的直径, AB是
的一条弦,AP是
的切线.作
,并与AP交于点M,延长MB交AC于点E,交
于点
,连结AD、BC.求证:△ABC ∽△EAM.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f77e777388a304929f9082d21aed718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2020/3/27/2428535677165568/2433505701199873/STEM/8ca1c0d018b84221912e822b8cb95769.png?resizew=165)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】【综合运用】如图所示,在平面直角坐标系中,矩形
的顶点A在
轴的正半轴上,点B的坐标为
,点P,Q分别是线段
上的动点,在运动过程中保持
,连接
,
,
.
时,求点P的坐标;
(2)设
的面积为S,求S的最大值;
(3)设
,求
的最小值及此时点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8b77523fdb650961e4cc870e12180d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b0e60c27117920da59995dc520222b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51dfab0c1ec275ff83d08c7293968c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdaf3f05734e3dbec8db0926bd301a4d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8407c92999e256af35081bf5669a1acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,以
的一边
为直径的半圆与其它两边
,
分别交于点D,E,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/a3c97f74-d4c5-4a44-adac-46694158a34a.png?resizew=154)
(1)求证:
;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a5671fb9c0a47c55b7f5d544b355ce6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/a3c97f74-d4c5-4a44-adac-46694158a34a.png?resizew=154)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d384390f4e0a1e0abd4cc19382d94db.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7e7db215f9c0167600e222d10dd07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次